Surface-coating apparatus



Patented June 17, 1919 R, A. MGORE. SURFACE COMING APPARATUS.

APPLICATION'TILED FEB. l8,1918`.

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Eyre/V723@ x y t ROBERT A. MOORE, OF DETROIT, MICHIGAN.

i* SURFACE-connue APPARATUS.

Specification of Letters Patent.

Patented J une 17, 1919.

Application led February 18, 1918. Serial No. 217,736. v

To all whom t may concern:

Be it known that I, ROBERT A. MOORE, a citizen of the United States, and a resident of Detroit, county of Wayne, and State of Michigan, have invented a new and useful Improvement in Surface-Coating Apparatus, of which the following is a -specication, the principle of the invention Vbeing herein explained and the best mode in which I have contemplated applying that principle, so as to distinguish it from other inventions. p

The present invention, relating, as indicated to surface coating apparatus, is partircularly concerned with a device which may be used for applying a coat of liquid or semiliquid material, such as paste, to a desired surface, and is more particularly concerned with the applying of a filling coat of putty to a surface before painting, although obviously the same apparatus may be used for applying other materials, such as liquids and semi-liquids for other purposes. A further object of the invention is the provision in such an apparatus of means for permitting the operator to continuously and manually control the supply of the coating material to the surface being gone over. A further object of the invention is the provision of an extremely simple and easily operated device for carrying out the purposes above described. To the accomplishment of the foregoing and related ends, said invention, then, consists of the means hereinafter fully described and particularly pointed out in the claims. c

The annexed drawing and the following description set forth in detail certain mechanism embodying the invention, such disclosed means constituting, however, but one of the various mechanical forms in which the principle of the invention may be used.

In said annexed drawing :h

Figure 1 is a longitudinal section through .the device when pressed against a surface andin operative position with respect thereto; Fig. 2 is a transverse section on the line 2-2, Fig. 1; Fig. 3 is a similar transverse section on the line 3 3, Fig. 1; Fig. 4 is a similar section on the line 4 4, Fig. l; and Fig. 5 is a front view of the device illustrating a modified type of spreading knife, which shall be described in detail herelnafter.

In the form illustrated in the drawingthe device' is' constructed for applying a filling? coat of putty to a surface 1, the device consisting of a box-like chamber 2 servinof as a reservoir for the material to be supplied to the surface. This material is contained in the triangular-shaped reservoir 3 and is fed from this reservoir through a discharge nozzle 4 between a spreading knife 5 and the forvaard lower edge 6 of the casing 2. The spreading knife 5 is removable and is held with any desired degree of tension against the edge 6 by means of a set screw 7 when the device is not in use, but is pressed away from the edge 6, when forced against the surface to be coated, a sufficient distance to permit the material to be fed in a thin coat between these two edges. The thickness of the coat applied may of course bc varied by varying the pressure of the device against the surface which raises the knife 5 a greater distance from the edge 6, and also by increasing the supply of material fed to this discharge opening by the means which will now be described. p

The chamber 2 is normally closed by means of a cover 8,'which is pivoted about the rear end of the casing 2 by means of a pin 9, which also serves as a pivot or hinge for an ejecting member in the form of a plate 11. The ejecting member 11 is snugly fitted into the casing 2 so that it contacts the side of the casing and the forward end to prevent any leakage of material from beneath the plunger to the top of the casing. This plate 11 is preferablyconstructed with a washer 12 consisting of a strip of leather fastened between upper and lower plates 13 and 14 respectively, while the forward. end 30 of the chamber 2 is curved to the arc of a 4circle drawn at that distance from the hinge 9 as a center, and thus the end of the plate 11 is maintained in contact with the forward end of the casing throughout its entire range of movement. The forward end of the plate 11 may be curved upwardly, as indicated in Fig. 1, to secure a slightly better feeding action at theJ lower part of its stroke or movement when it approaches the bottom of the casing 2.

Pivotally mounted in the plate 11 is a rod 15, which extends upwardly beyond the sides of the casing 2. This rod is hinged by means of a pin 16 extending into the leather washer between the plates 13 and 14 and allows the rod a considerable movement to either side of aline drawn at right angles tothe plane at the' bottom of the casing 2?' The odf 15 rial'will then :issue from this iopening.

:for the chamber 2 and,i s ,engagedbyineans 0f a handle member'I?, which 1s plvoted about a bar 18 formed as apertio fttheite-r,-U

Ward end of the casing 2. Pressure down Ward on .the handleinelnber 17 forces ,the ejecting member or plate 11 downward toward the bottom of .the easingaQ/.and ithus forces the material therein through the opening '4 tolthedischarge :nozzle between the plates f5 and 6, andthe-handle Lisnt sul:- fficientilength to aford aeonsiderable leverage inthedepression of the platefll 4so that `it is al1-easy -matter .fforthe Workmen' to :force evensuch yfnlaterial -as 'puttyfrom the casing 2 `thro ughthe nozzle. Then'ietho'd `of #operation will =be readily understood from the oregoing description of the device. lillie Worlnnan grasps the casing usually in both han'ds, fpressing slightly on` the lever 217, and

lpressingfthe spreading knife 5 against the surface until iit opens the .nozzle .sufficiently =to perrnitft-he desired amount of .material :to

be discharged. The tdevice '.i-s .then -Llrawn .overfthesurfacel tof be covered and a thin coat :of material is applied-to the surfacerbynieans of the :spreading knife 5.

f `:In case lit is (desired `to lform `a fridge el' the `material on the surface that .fis 'being treated it cainbe doneby cutting an 'opening 20, suchias :shown Iin i i4, ,at .any :desired point in thespreading knife andthefmate Il' the openingtisfa semi+circleas show-n in 1Fig. '4L-a semi-circular.ridge ol. the material will ibe `spread Aacross :the surface and K.the dev-ice .may beused :Eorithisipurpese inrtuck point fin g )the 1j oints ibetaveen ibrick with cement.

'Itrisunnecessaryfto pointcout the various .uses afer my device as these will readily suggestxthemselvesto thoseskilled inthevarious '-arts. litwvill =be recognized that fin thede .vice the `material `may spread evenly and rapidly andllnay be constantly controlled by lhevoperator throughfhis pressure of lthe -d'e- *Vice against the surface andihisoperationof `:the f handle.

' Other modes fofjapplying Athe principle for "my invention y-inay be employed 'instead of terial 'therefrom through Ksaid discharge opening, and` a pivoted handle connected to .said' ej ecting member: andadapted tosoperate Qthessame. Y Y

2. `In apparatus of class fdeseribed, fthe combination; ofl aireseryoire4 a :discharge opening :leading itherefrom, f and adapted @to libe opened by pressure against a surface :to lee coated, a pivoted ecting imember mounted on said treservoir, ;a red attached @to :said vimember, .and a i handle piarotally j-attaehed `5to -said reservoir land 4extending substantially parallel thereto, fsaid handle :engaging-fand ybeirng:adapted toactuatei said fred temperate Vsaid ejeetingfmember.

3. gln:apparatus-ofthe;class described, the

, combination of: a reseryoir, a` discharge, epening =therefroni, ,la :plate hinged ite said resen voir: adj acent-` to: oneibottoinen' d: thereofasaid iplate :being provided with paclring 'material snugly A.contacting the -sidesfof said reservoir, .and means adapted to swing said,plate about Aits axis -toivard1the ebottomi of said resenvoir. 4. lin apparatus of -elass fdescribed, `.the V.combination of a ireservoin'a discharge opening leading thereiirom, and -.adapted ,to I.be .opened by ,pressure fagainst fa -sunfaee to :be coated, a 'pivoted ejeeting-member mounted iin said reservoir .and adapted ito dier-ee vmaterial therefrom l through ,said ,discharge fepening, and doublepewter-.multiplying :connections for operating said ej ecting member. @Signed by ine, ithislilfthsdayef fEebruary, 1918. f Y

`.naaienzr A. iMeoina Sopiesfof this gpatentgniay be obtained ifor fveycents each, ny addressing ,the fgnimssieneriefgatenfcs,

` Y Washington, D. C. 

